Re: Debian Bullseye on Raspberry Pi 4 4GB?
On Sat, Feb 20, 2021 at 11:10 AM Ian Campbell <ijc@debian.org> wrote:
>
> On Fri, 2021-02-19 at 18:42 -0800, Rick Thomas wrote:
> > If I can get the Pi4 working with either of the Debian alternatives,
> > I will probably buy a Pi zero W as the actual replacement for the
> > Sheeva, and keep the Pi4 for experimentation.
>
> I'm sure someone who follows rpi closer than I will correct if not, but
> isn't the whole Pi Zero range based the older ARMv6 (i.e. not armhf)
> processor which requires the Raspbian rebuild because it is not
> compatible with the armhf baseline used by Debian (and most other
> distros I think)?
Correct. The Debian armel port works on ARMv6, but is much slower
than Raspbian for anything that uses the floating point unit.
> If so then any experiments/learnings on a Pi4 (a full ARMv7 CPU
> supported by the arm64 Debian arch) with full Debian aren't likely to
> be very transferable.
The bootloader is still the same on both, and that is the main
difference to any other machine. Aside from that, it's just a Debian,
whether armel or arm64. You should in fact be able to install
an armel rootfs and have both armel and arm64 kernels to
allow booting it across the entire range.
Arnd
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